| 释义 |
lobopodium, n. Zool.|ləʊbəˈpəʊdɪəm|
Pl. -ia.
[a. G. Lobopodium (coined in A. Lang Lehrbuch d. vergleichenden Anat. (ed. 2, 1901) II. ix. 108): see lobe n., -o, podium n. 2.]
1. A blunt or lobe-like pseudopodium of a protozoan.
1906M. Hartog in Cambr. Nat. Hist. I. ii. 47 Lang distinguishes ‘lobopodia’, ‘filopodia’, and ‘pseudopodia’ according to their form,—blunt, thread-like, or anastomosing. 1910G. N. Calkins Protozool. i. 35 The motile organs of these low types are in constant, endlessly changing centres of protoplasmic energy... They appear and disappear again with an ever-fascinating, inexplicable regularity. These are the so-called lobose, ‘lobopodia’, or finger-form pseudopodia. 1975Jrnl. Cell Sci. XIX. 169 The process of circus movement involves blebbing of a hyaline pseudopodium, spreading of the bleb, and thus propagating of the lobopodium around the cell circumference. 1976Nature 3 June 413/1 Some blebs extend to form lobopodia. 1987Laverack & Dando Lect. Notes Invertebr. Zool. (ed. 3) ii. 19/1 Pseudopodia are temporary protoplasmic extensions of the cell. If broad and lobose as in naked amoebae they are called lobopodia; if slender and tapered as in shelled amoebae, filopodia [etc.].
2. A blunt limb or limb-like organ on some worms and worm-like animals, esp. ancestral ones.
1966A. Crozy tr. Sharov's Basic Arthropodan Stock i. 11 The lobopodia of Spinther..still retain the character of tentacles although they have acquired annulation and are armed with well-developed claws. Ibid. 14 In the annelids later passing from a creeping to a burrowing or swimming way of life, the locomotor organs—lobopodia—became the ventral parts of the parapodia, i.e. neuropodia. 1967Jrnl. Nat. Hist. I. 11 We have no ancestral lobopod worm on which to study the structure and mode of action of a lobopodium. 1978S. M. Manton Arthropoda i. 26 The only lobopodium we can study alive is a leg of an onychophoran. This uniramous limb is worked by antagonistic muscles and by the flow and resistance of haemolymph.
Hence loboˈpodial a., of the nature of or possessing a lobopodium.
1967Jrnl. Nat. Hist. I. 13 (caption) Diagrams..to show features associated with the mode of action of the lobopodial limb. 1974Jrnl. Zool. CLXXI. 124 We have little evidence of the existence of soft bodied lobopodial animals living alongside the armoured arthropods. 1978S. M. Manton Arthropoda ix. 399 These joints..could only have evolved from a soft-bodied lobopodial leg. 1982Cancer Res. XLII. 2804/1 TPA also induced circumferential rotations of lobopodial blebs in blastula cells cultured on plastic. |